<template><!--购买页ul组件-->
    <div class="detail-wrap">
        <div class="detail-left">
            <div class="product-board">
                <img :src="productIcon">
                <ul>
                    <router-link v-for="item in products" :key = item.id
                     :to="{ path: item.path }" tag="li"
                      active-class="active">
                        {{ item.name }}
                    </router-link>
                </ul>
            </div>
        </div>
        <div class="detail-right">
            <keep-alive>
                <router-view></router-view>
            </keep-alive>
        </div>
    </div>
</template>

<script>
    export default {
            data () {
                return {
                    products: [
                        {
                            name: '数据统计',
                            path:'count',
                            icon:require('../assets/images/1.png'),
                            active: false
                        },{
                            name: '数据预测',
                            path:'forecast',
                            active: false
                        },{
                            name: '流量分析',
                            path:'analysis',
                            active: false
                        },{
                            name: '广告发布',
                            path:'publish',
                            active: false
                        }
                    ],
                    imgMap: {
                        '/detail/count': require("../assets/images/1.png"),
                        '/detail/forecast': require("../assets/images/2.png"),
                        '/detail/analysis': require("../assets/images/3.png"),
                        '/detail/publish': require("../assets/images/4.png")
                    }
                }
            },
            computed: {
                productIcon () {
                    
                    return this.imgMap[this.$route.path]
                    //根据当前路由路径，自动切换图片
                    // this.$route.path就是当前页面的路径/detail/count
                }
            }
    }

</script>

<style>
.detail-wrap {
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
  padding-top: 20px;
}
.detail-left {
  float: left;
  width: 200px;
  text-align: center;
}
.detail-right {
  float: left;
  width: 980px;
  margin-left: 20px;
}
.product-board {
  background: #fff;
  padding: 20px 0;
}
.product-board ul {
  margin-top: 20px;
}
.product-board li {
  text-align: left;
  padding: 10px 15px;
  cursor: pointer;
}
.product-board li.active,  /*给当前位置添加样式，*/
.product-board li:hover {
  background: #4fc08d;
  color: #fff;
}
.product-board li a {
  display: block;
}
.sales-board {
  background: #fff;
}
.sales-board-form {

}
.sales-board-intro h2 {
  font-size: 20px;
  padding: 20px;
}
.sales-board-intro p {
  background: #f7fcff;
  padding: 10px 20px;
  color: #999;
  line-height: 1.8;
}
.sales-board-form {
  padding: 30px 20px;
  font-size: 14px;
}
.sales-board-line {
  clear: both;
  padding-bottom: 20px;
}
.sales-board-line-left {
    display: inline-block;
    width: 100px;
}
.sales-board-line-right {
    display: inline-block;
    width: 75%;
}
.sales-board-des {
  border-top: 20px solid #f0f2f5;
  padding: 15px 20px;
}
.sales-board-des p {
  line-height: 1.6;
}
.sales-board-des h2 {
  font-size: 20px;
  padding-bottom: 15px;
}
.sales-board-des h3 {
  font-size: 18px;
  font-weight: bold;
  padding: 20px 0 10px 0;
}
.sales-board-des li {
  padding: 5px 0;
}
.sales-board-table {
  width: 100%;
  margin-top: 20px;
}
.sales-board-table th {
  background: #4fc08d;
  color: #fff;
}
.sales-board-table td {
    border: 1px solid #f0f2f5;
    padding: 15px;
}
</style>